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Finding the Fourth Proportional to 3,712.56, 5,568.84 and 1,520.79

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Solution

The fourth proportional to 3,712.56, 5,568.84 and 1,520.79 is: 2,281.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.56 : 5,568.84 = 1,520.79 : x
  2. Step 2: Convert to fraction form
    3,712.56/5,568.84 = 1,520.79/x
  3. Step 3: Cross multiply
    3,712.56x = 5,568.84 × 1,520.79
  4. Step 4: Simplify right side
    3,712.56x = 8,469,036.18
  5. Step 5: Solve for x
    x = 8,469,036.18/3,712.56
  6. Step 6: Final answer
    x = 2,281.19

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